Re: Re: Pulse Sensor: an Open Source Heart-rate Sensor that Rocks by Yury Gitman � Kickstarter

[Walter Bender]

So cool.

-walter

On 7/20/11, forster at ozonline.com.au <forster at ozonline.com.au> wrote:
>> I have a partially complete refactoring of the camera code that should
>> speed things up; in the meantime, I wonder if a simple resistive light
>> sensor run through the mic input wouldn't do just as well.
>>
>
> A cadmium sulphide photoresistor (ORP12 equivalent) worked OK measuring
> resistance in Turtle art
>
> Cover cell with little finger and hold near bright light. Pulse gives +-50
> ohms in 3000 ohms.
>
> Screenshot attached


-- 
Walter Bender
Sugar Labs
http://www.sugarlabs.org